Flue gas white smoke removal and waste heat recovery equipment for wet desulphurization

Abstract

The utility model relates to the technical field of wet desulphurization, in particular to flue gas white smoke removal and waste heat recovery equipment for wet desulphurization, which comprises a desulfurizing tower, a fixing plate, a poison gas alarm, a waste heat recovery machine, a sliding groove and a protection plate, one side of the desulfurizing tower is fixedly connected with the fixing plate, and one side of the fixing plate is fixedly provided with a controller. According to the utility model, the defects in the prior art are overcome, the desulfurizing tower, the fixed plate, the controller and the poison gas alarm are arranged, so that a worker can detect the concentration of the poison gas in the environment through the poison gas alarm, record the concentration value at the moment, and set an alarm value higher than the concentration value at the moment through the controller; the poison gas alarm can reflect the detected poison gas concentration value to the controller, when the controller finds that the detected concentration value is larger than an alarm value, the controller can send out an alarm signal and transmit the alarm signal to the audible and visual alarm, the audible and visual alarm is made to send out an alarm signal, and therefore the gas leakage problem existing in equipment can be found in time.

Description

Technical Field

[0001] The utility model relates to a flue gas dewhitening and waste heat recovery device, in particular to a flue gas dewhitening and waste heat recovery device for wet desulfurization. Background Art

[0002] In recent years, steel, power, and chemical companies have strictly implemented ultra-low emission requirements for pollutants such as soot, SO2, and NOx. This has resulted in a reduction in the total amount of major pollutants emitted, significantly improving the environment. These substances enter the atmosphere in the form of aerosols. When wet flue gas comes into contact with cooler ambient air, the saturated or nearly saturated wet flue gas condenses and forms due to the drop in temperature as the flue gas rises and diffuses. These condensed water droplets form in the flue gas, refracting and scattering light, creating a "smoke plume" that impacts the lives of urban residents and the perception of the city.

[0003] For this reason, a flue gas desulfurization and waste heat recovery equipment is particularly important in the factory production process. The existing flue gas desulfurization and waste heat recovery equipment cannot monitor whether there is gas leakage through the equipment during use, and personnel cannot promptly discover gas leakage problems in the equipment. In addition, the installation position of the existing equipment guard plate is mostly fixed with bolts, and the equipment cannot be quickly disassembled and assembled, which makes it inconvenient for personnel to inspect and repair the inside of the machine, increases the workload of maintenance personnel, and brings inconvenience to maintenance. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A flue gas desulfurization and waste heat recovery device for wet desulfurization, comprising a desulfurization tower, a fixed plate, a toxic gas alarm, a waste heat recovery machine, a sliding groove and a protective plate. A fixed plate is fixedly connected to one side of the desulfurization tower, a controller is fixedly installed on one side of the fixed plate, a toxic gas alarm is fixedly installed on the right side of the controller, a probe is fixedly connected to the lower end of the toxic gas alarm, an audible and visual alarm is fixedly connected to the right side of the toxic gas alarm, a sliding groove is provided at the front end of the waste heat recovery machine, a protective plate is movably connected to the inner side of the sliding groove, a handle is fixedly installed at the front end of the protective plate, pulleys are movably installed at the upper and lower ends of the protective plate, and the outer sides of the pulleys are movably connected to the sliding groove.

[0006] Preferably, a first transmission pipe is fixedly installed on the upper end of the desulfurization tower, one side of the first transmission pipe is fixedly connected to a cooling chamber, and the right side of the cooling chamber is fixedly connected to an air intake pipe.

[0007] Preferably, a second transmission pipe is fixedly installed at the lower end of the desulfurization tower, one end of the second transmission pipe is fixedly connected to a gas hood, and the upper end of the gas hood is fixedly connected to a waste heat recovery machine.

[0008] Preferably, an air hood is fixedly mounted on the upper end of the waste heat recovery machine, and a third transmission pipe is fixedly mounted on the upper end of the air hood.

[0009] Preferably, a heating chamber is fixedly installed at one end of the third transmission pipe, a connecting block is fixedly connected to the lower end of the heating chamber, a cooling chamber is fixedly connected to the lower end of the connecting block, and an exhaust pipe is fixedly connected to the right end of the heating chamber.

[0010] Preferably, the lower right end of the waste heat recovery machine is fixedly connected to a water outlet pipe, and the upper right end of the waste heat recovery machine is fixedly connected to a water inlet pipe.

[0011] The embodiment of the present utility model provides a flue gas desulfurization and waste heat recovery device for wet flue gas desulfurization, which has the following beneficial effects: when there is a toxic gas leakage in the equipment, the device can promptly detect the toxic gas leakage of the equipment through the alarm device, and can alarm personnel through the alarm, so that the gas leakage problem in the equipment can be discovered in time, and the installation position of the existing equipment guard plate is mostly fixed with bolts, and the present device adopts a movable installation module, so that personnel can quickly disassemble the protective plate of the machine and inspect the inside of the machine.

[0012] By setting up a desulfurization tower, a fixed plate, a controller and a poisonous gas alarm, when personnel operate this equipment, the flue gas enters the cooling chamber from the air inlet pipe, the cooling chamber performs a preliminary cooling on the flue gas to make the flue gas more dense, and then the flue gas enters the desulfurization tower to desulfurize the flue gas, and then the flue gas enters the waste heat recovery machine through the second transmission pipe to recover the waste heat of the flue gas, and finally the flue gas that has recovered the heat enters the heating chamber through the third transmission pipe. Since the flue gas after the waste heat recovery has a high moisture content, the flue gas becomes white, and at this time the heating chamber heats the flue gas after the waste heat recovery, thereby reducing the flue gas The condensed moisture in the smoke prevents the smoke from turning white and is then discharged into the air. During this process, when the equipment is operating normally, personnel can use the gas alarm to detect the toxic gas concentration in the environment, record the concentration value at this time, and then set an alarm value higher than the concentration value at this time through the controller. When toxic gas leaks, the gas alarm will respond to the detected toxic gas concentration value to the controller. When the controller finds that the detected concentration value is greater than the alarm value, the controller will send an alarm signal to the sound and light alarm, causing it to send an alarm signal, thereby promptly discovering the gas leakage problem in the equipment.

[0013] By setting up a waste heat recovery machine, a sliding groove, a protective plate and a pulley, when personnel find that the waste heat recovery effect of the flue gas during equipment operation is not good, or the machine cannot operate normally, it is necessary to inspect and repair the inside of the waste heat recovery machine. Personnel can pull the handle horizontally to move the protective plate. At this time, the pulley on the outside of the protective plate will slide out along the sliding groove, so that the protective plate can be quickly removed. When the maintenance is completed, the personnel can also align the protective plate with the sliding groove and install the protective plate back on the waste heat recovery machine, thereby replacing the existing equipment guard plate installation position which is mostly fixed with bolts, so that personnel can quickly remove the machine's protective plate and inspect the inside of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the waste heat recovery machine of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the poisonous gas alarm of the present utility model.

[0018] In the figure: 1. Desulfurization tower; 2. First transmission pipe; 3. Cooling chamber; 4. Air inlet pipe; 5. Fixed plate; 6. Second transmission pipe; 7. Gas hood; 8. Waste heat recovery machine; 9. Sliding groove; 10. Protective plate; 11. Handle; 12. Pulley; 13. Third transmission pipe; 14. Heating chamber; 15. Connecting block; 16. Exhaust pipe; 17. Water outlet pipe; 18. Water inlet pipe; 19. Controller; 20. Poison gas alarm; 21. Probe; 22. Sound and light alarm. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0020] Example: Figure 1-3As shown, a flue gas desulfurization and waste heat recovery equipment for wet desulfurization includes a desulfurization tower 1, a fixed plate 5, a toxic gas alarm 20, a waste heat recovery machine 8, a sliding groove 9 and a protective plate 10. A fixed plate 5 is fixedly connected to one side of the desulfurization tower 1, a controller 19 is fixedly installed on one side of the fixed plate 5, a toxic gas alarm 20 is fixedly installed on the right side of the controller 19, a probe 21 is fixedly connected to the lower end of the toxic gas alarm 20, and an audible and visual alarm 22 is fixedly connected to the right side of the toxic gas alarm 20. A sliding groove 9 is provided at the front end of the waste heat recovery machine 8, a protective plate 10 is movably connected to the inner side of the sliding groove 9, a handle 11 is fixedly installed at the front end of the protective plate 10, pulleys 12 are movably installed at the upper and lower ends of the protective plate 10, and the outer side of the pulley 12 is movably connected to the sliding groove 9. The toxic gas alarm 20 can monitor the concentration of harmful gases in the ambient air and alarm personnel through the audible and visual alarm 22.

[0021] For details, please refer to Figure 1 A first transmission pipe 2 is fixedly installed on the upper end of the desulfurization tower 1, and a cooling chamber 3 is fixedly connected to one side of the first transmission pipe 2. An air inlet pipe 4 is fixedly connected to the right side of the cooling chamber 3. The cooling chamber 3 can perform preliminary cooling of the flue gas, thereby increasing the concentration of the flue gas and increasing the purification effect of the flue gas after entering the desulfurization tower 1.

[0022] For details, please refer to Figure 1 A second transmission pipe 6 is fixedly installed at the lower end of the desulfurization tower 1, one end of the second transmission pipe 6 is fixedly connected to a gas hood 7, and the upper end of the gas hood 7 is fixedly connected to a waste heat recovery machine 8. The waste heat recovery machine 8 can significantly cool the flue gas temperature and recover the heat.

[0023] For details, please refer to Figure 1 An air hood 7 is fixedly installed on the upper end of the waste heat recovery machine 8, and a third transmission pipe 13 is fixedly installed on the upper end of the air hood 7. The air hood 7 can centrally input the flue gas that needs to recover heat into the waste heat recovery machine 8.

[0024] For details, please refer to Figure 1 The lower end of the heating chamber 14 is fixedly connected to a connecting block 15, the lower end of the connecting block 15 is fixedly connected to the cooling chamber 3, and the right end of the heating chamber 14 is fixedly connected to an exhaust pipe 16. The heating chamber 14 can heat the flue gas to be discharged, reduce the condensed moisture in the flue gas, and thus reduce the whitening of the flue gas.

[0025] For details, please refer to Figure 2 The lower right end of the waste heat recovery machine 8 is fixedly connected to a water outlet pipe 17, and the upper right end of the waste heat recovery machine 8 is fixedly connected to a water inlet pipe 18. The water outlet pipe 17 can transfer the water source after absorbing the flue gas heat to the heat storage device.

[0026] Working principle: by setting up a desulfurization tower 1, a fixed plate 5, a controller 19 and a poisonous gas alarm 20, when personnel operate this equipment, the flue gas enters the cooling chamber 3 from the air inlet pipe 4, the cooling chamber 3 performs preliminary cooling on the flue gas to make the flue gas more dense, and then the flue gas enters the desulfurization tower 1, the flue gas is desulfurized, and then the flue gas enters the waste heat recovery machine 8 through the second transmission pipe 6 to recover the waste heat of the flue gas, and finally the flue gas that has recovered the heat passes through the third transmission pipe 13 into the heating chamber 14. Since the flue gas after the waste heat recovery has a high moisture content, the flue gas turns white. At this time, the heating chamber 14 heats the flue gas after the waste heat recovery, thereby reducing the condensed moisture in the flue gas, so that the flue gas does not turn white, and then is discharged into the air. In this process, when the equipment is operating normally, personnel can detect the toxic gas concentration in the environment through the poisonous gas alarm 20, record the concentration value at this time, and then set an alarm value higher than the concentration value at this time through the controller 19. When toxic gas leaks, the poisonous gas alarm 20 will report the detected toxic gas concentration value to the controller 19. When the controller 19 finds that the detected concentration value is greater than the alarm value, the controller 19 will send an alarm signal to the sound and light alarm 22, causing it to send an alarm signal, thereby timely discovering the gas leakage problem in the equipment. By setting the waste heat recovery machine 8, sliding groove 9, protective plate 10 and pulley 12, when personnel find that the waste heat recovery effect of the flue gas during the operation of the equipment is not good, or the machine cannot operate normally, it is necessary to inspect and repair the inside of the waste heat recovery machine. Personnel can pull the handle 11 horizontally to drive the protective plate 10 to move. At this time, the pulley 12 on the outside of the protective plate 10 will slide out along the sliding groove 9, so that the protective plate 10 can be quickly removed. After the maintenance is completed, the personnel can also align the protective plate 10 with the sliding groove 9 to install the protective plate back on the waste heat recovery machine 8, thereby replacing the existing equipment guard plate installation position which is mostly bolted, so that personnel can quickly disassemble the machine's protective plate 10 and inspect the inside of the machine.

Claims

1. A flue gas desulfurization and waste heat recovery device for wet flue gas desulfurization, comprising a desulfurization tower (1), a fixed plate (5), a toxic gas alarm (20), a waste heat recovery machine (8), a sliding trough (9) and a protective plate (10), characterized in that: A fixed plate (5) is fixedly connected to one side of the desulfurization tower (1); A controller (19) is fixedly installed on one side of the fixed plate (5), a poisonous gas alarm (20) is fixedly installed on the right side of the controller (19), a probe (21) is fixedly connected to the lower end of the poisonous gas alarm (20), and an audible and visual alarm (22) is fixedly connected to the right side of the poisonous gas alarm (20), a sliding groove (9) is provided at the front end of the waste heat recovery machine (8), a protective plate (10) is movably connected to the inner side of the sliding groove (9), a handle (11) is fixedly installed at the front end of the protective plate (10), pulleys (12) are movably installed at the upper and lower ends of the protective plate (10), and the outer sides of the pulleys (12) are movably connected to the sliding groove (9).

2. The flue gas desulfurization and waste heat recovery equipment for wet desulfurization according to claim 1, characterized in that: A first transmission pipe (2) is fixedly installed on the upper end of the desulfurization tower (1); a cooling chamber (3) is fixedly connected to one side of the first transmission pipe (2); and an air intake pipe (4) is fixedly connected to the right side of the cooling chamber (3).

3. The flue gas desulfurization and waste heat recovery equipment for wet desulfurization according to claim 1, characterized in that: A second transmission pipe (6) is fixedly installed at the lower end of the desulfurization tower (1), one end of the second transmission pipe (6) is fixedly connected to a gas hood (7), and the upper end of the gas hood (7) is fixedly connected to a waste heat recovery machine (8).

4. The flue gas desulfurization and waste heat recovery equipment for wet desulfurization according to claim 1, characterized in that: An air hood (7) is fixedly mounted on the upper end of the waste heat recovery machine (8), and a third transmission pipe (13) is fixedly mounted on the upper end of the air hood (7).

5. The flue gas desulfurization and waste heat recovery equipment for wet desulfurization according to claim 4, characterized in that: A heating chamber (14) is fixedly installed at one end of the third transmission pipe (13), a connecting block (15) is fixedly connected to the lower end of the heating chamber (14), a cooling chamber (3) is fixedly connected to the lower end of the connecting block (15), and an exhaust pipe (16) is fixedly connected to the right end of the heating chamber (14).

6. The flue gas desulfurization and waste heat recovery equipment for wet desulfurization according to claim 1, characterized in that: The lower right end of the waste heat recovery machine (8) is fixedly connected to a water outlet pipe (17), and the upper right end of the waste heat recovery machine (8) is fixedly connected to a water inlet pipe (18).

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